<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <!-- import CSS -->
    <link rel="stylesheet" href="http://unpkg.com/element-ui/lib/theme-chalk/index.css">
</head>
<body>
<div id="app">
    <!--name代表上传文件时 文件的参数名-->
    <el-upload
            action="/upload"
            name="picFile"
            list-type="picture-card"
            :on-preview="handlePictureCardPreview"
            :on-remove="handleRemove">
        <i class="el-icon-plus"></i>
    </el-upload>
    <el-dialog :visible.sync="dialogVisible">
        <img width="100%" :src="dialogImageUrl" alt="">
    </el-dialog>

</div>
</body>
<!-- import Vue before Element -->
<script src="js/vue.js"></script>
<!-- import JavaScript -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<script src="js/axios.min.js"></script>
<script>
    let v = new Vue({
        el: '#app',
        data: function() {
            return {
                dialogImageUrl: '',
                dialogVisible: false
            }
        },
        methods: {
            handleRemove(file, fileList) {
                console.log(file, fileList);
                //当点击删除图片的方法会执行
                //file代表要删除的文件
                //file.response代表文件上传成功时 服务器响应的数据(文件名)
                console.log("文件名="+file.response)
                axios.get("/remove?name="+file.response).then(function (response) {
                    console.log("服务器图片已删除!")
                })
            },
            handlePictureCardPreview(file) {
                this.dialogImageUrl = file.url;
                this.dialogVisible = true;
            }
        }
    })
</script>
</html>